diff --git a/kmath-ast/src/jvmMain/kotlin/scientifik/kmath/asm/internal/AsmCompiledExpression.kt b/kmath-ast/src/jvmMain/kotlin/scientifik/kmath/asm/internal/AsmCompiledExpression.kt
index 0e113099a..a5236927c 100644
--- a/kmath-ast/src/jvmMain/kotlin/scientifik/kmath/asm/internal/AsmCompiledExpression.kt
+++ b/kmath-ast/src/jvmMain/kotlin/scientifik/kmath/asm/internal/AsmCompiledExpression.kt
@@ -3,6 +3,13 @@ package scientifik.kmath.asm.internal
 import scientifik.kmath.expressions.Expression
 import scientifik.kmath.operations.Algebra
 
+/**
+ * [Expression] partial implementation to have it subclassed by actual implementations. Provides unified storage for
+ * objects needed to implement the expression.
+ *
+ * @property algebra the algebra to delegate calls.
+ * @property constants the constants array to have persistent objects to reference in [invoke].
+ */
 internal abstract class AsmCompiledExpression<T> internal constructor(
     @JvmField protected val algebra: Algebra<T>,
     @JvmField protected val constants: Array<Any>
diff --git a/kmath-ast/src/jvmMain/kotlin/scientifik/kmath/asm/internal/buildName.kt b/kmath-ast/src/jvmMain/kotlin/scientifik/kmath/asm/internal/buildName.kt
index 65652d72b..66bd039c3 100644
--- a/kmath-ast/src/jvmMain/kotlin/scientifik/kmath/asm/internal/buildName.kt
+++ b/kmath-ast/src/jvmMain/kotlin/scientifik/kmath/asm/internal/buildName.kt
@@ -2,7 +2,13 @@ package scientifik.kmath.asm.internal
 
 import scientifik.kmath.ast.MST
 
-internal fun buildName(mst: MST, collision: Int = 0): String {
+/**
+ * Creates a class name for [AsmCompiledExpression] subclassed to implement [mst] provided.
+ *
+ * This methods helps to avoid collisions of class name to prevent loading several classes with the same name. If there
+ * is a colliding class, change [collision] parameter or leave it `0` to check existing classes recursively.
+ */
+internal tailrec fun buildName(mst: MST, collision: Int = 0): String {
     val name = "scientifik.kmath.asm.generated.AsmCompiledExpression_${mst.hashCode()}_$collision"
 
     try {